Quoted from Marriott Concierge

"Hello All,

Roll-over nights have been extended to next year, 2011. They could end at anytime which would mean the end of the rollover nights. Until they announce that they have stopped, the roll over nights will continue to roll over from one year to the next.

For example: If in 2009 I earned 30 nights in excess to my 75 platinum nights. I had 30 nights roll over into 2010. I then stayed 85 nights in 2010. So 85 in addition to my 30 nights would put me at 115 nights for 2010. I would have 40 rollover nights to go towards my 2011 elite achievement.

If you have lived at one of our properties for the entire year of 2009 and had 290 nights roll into 2010. You then didn't stay any nights in 2010, you would still have Platinum status in 2011, after the 215 remaining nights rolled over.

Again there has been no announcement that the Roll-over benefit will continue on into 2012.

I hope this helps to clarify things.

Kind regards,

Marie "

I not sure Marriott will continue this for 2011/12.